01577+4434 A 1526 (HD 11869)
01h 57m 40.62s +44° 33' 48.0" P.A. 186.00 sep 0.2 mag 8.70,8.80 Sp A0 dist. 220.26 pc (718.49 l.y.)
| Coord 2000 |
01577+4434 |
|
Discov num |
A 1526 |
|
Comp |
|
|
Coord arcsec 2000 |
01 57 40.62 +44 33 48.0 |
|
| Date first |
1907 |
|
Date last |
2013 |
|
Obs |
23 |
|
| Pa first |
291 |
|
Pa last |
186 |
|
P.A. Now (θ) |
186° |
|
| Sep first |
0.4 |
|
Sep last |
0.18 |
|
Sep. Now (ρ) |
0.18" |
|
| Mag pri |
8.70 |
|
Mag sec |
8.80 |
|
delta mag (ΔM) |
0.1 |
|
Spectral class |
A0 (white) |
|
| Pri motion ra |
+004 |
|
Sec motion ra |
|
|
| Pri motion dec |
-007 |
|
Sec motion dec |
|
|
| Notes |
O
(Orbital solution) |
|
This double is physical.
OTHER CATALOGS AND DESIGNATIONS
| Name |
HD 11869 |
|
Constellation |
Andromeda |
|
SAO |
37641 |
|
HIP |
9128 |
|
| Tycho2 |
2828-01723-1 |
|
Gaia DR2 |
349741145419301888 |
|
HD |
11869 |
|
ADS |
1554 |
|
| BD |
BD+43 401 |
|
Distance |
220.26 |
|
Distance ly |
718.49 |
|
ORBITAL ELEMENTS
| Period (P) | 877.5y | ± 53.7 |
Periastron (T) | 1919.6y | ± 55.4 |
Semi-major axis (a) | 0.648a | ± 0.06 |
| Eccentricity (e) | 0.449 | ± 0.041 |
Inclination (i) | 100.2° | ± 2 |
Longitude of periastron (ω) | 187.4° | ± 3.2 |
| Node (Ω) | 112.6° | ± 1.3 |
Notes | | |
Reference | Cve2010e | |
| Equinox | 2000 | |
Last observation | 1995 | |
Grade | 4 | (1=Definitive, 9=Indet.) |
| label |
theta |
rho |
| 2000 |
223.2 |
0.090 |
| 2001 |
219.7 |
0.088 |
| 2002 |
216.2 |
0.087 |
| 2003 |
212.6 |
0.087 |
| 2004 |
209.0 |
0.086 |
| 2005 |
205.3 |
0.086 |
| 2006 |
201.7 |
0.087 |
| 2007 |
198.1 |
0.087 |
| 2008 |
194.6 |
0.088 |
| 2009 |
191.1 |
0.090 |
| 2010 |
187.8 |
0.091 |
| 2011 |
184.6 |
0.093 |
| 2012 |
181.5 |
0.095 |
| 2013 |
178.6 |
0.098 |
| 2014 |
175.8 |
0.100 |
| 2015 |
173.2 |
0.103 |
| 2016 |
170.7 |
0.106 |
| 2017 |
168.4 |
0.110 |
| 2018 |
166.2 |
0.113 |
| 2019 |
164.1 |
0.117 |
| 2020 |
162.1 |
0.120 |
| 2021 |
160.3 |
0.124 |
| 2022 |
158.6 |
0.128 |
| 2023 |
157.0 |
0.132 |
| 2024 |
155.5 |
0.136 |
| 2025 |
154.0 |
0.140 |
| 2026 |
152.7 |
0.144 |
| 2027 |
151.4 |
0.149 |
| 2028 |
150.2 |
0.153 |
| 2029 |
149.1 |
0.157 |
| 2030 |
148.0 |
0.162 |
|
|
Note: Theta is PA, Rho is Sep. For yearly orbits, data refer to Jan 1st.
|
|
|
|
|
|
|
|
Measures: green=micrometric, blue=interferometric, purple=photographic |
|
